The Attorney General's Office said Wednesday that Katherine Churchill, 52, was found dead inside her Lee Street apartment by Keene police responding to a 911 call on Feb. 4.

Based on the available evidence, investigators said it appeared Churchill died of a drug overdose. An autopsy was conducted the next day, and samples were sent out for toxicological testing, officials said.

The medical examiner was able to determine that Churchill was the victim of a homicide, the Attorney General's Office said, but it didn't say what the cause of death was.

The case is still under investigation, and officials said anyone with information about Churchill's death is asked to call Keene police at 603-357-9820 or leave an anonymous tip at the Keene Police Department’s online tip line.